Unload on middle click switches active tab [firefox]
Action for middle click on empty space on the left side or below the tabs: nothing Action for double click on empty space on the left side or below the tabs nothing Action for middle mouse click on folder: nothing Action for double click on folder: nothing Action for middle mouse click on tab: unload tab Action for double click on tab: nothing Switch tabs with mouse wheel: off
When middle clicking on some loaded tab, the focus always switches to some other (likely random) tab. In some rare cases, the clicked tab also doesn't unload.